Paper draw-off guide



1967 K. H. ROHDE $333,671

PAPER DRAW-OFF GUIDE Filed Feb. 26, 1965 KAR HE/NR/CH RO I'DE 2 av m QMATTOR/Vffi United States Patent 3,333,671 PAPER DRAW-OFF GUIDE KarlHeinrich Rohde, Wilhelmshaven, Germany, assignor to Olympia Werke A.G.,Wilhelmshaven, Germany Filed Feb. 26, 1965, Ser. No. 435,455

Claims priority, application Germany, Aug. 28, 1964,

4 Claims. (Cl. 197-133) This invention relates to paper guides, andparticularly to a paper guide for use with writing or printing machinesand especially for use with a calculating machine.

In machines of the nature referred to, it is not uncomrnon for themember receiving the writing to be in the form of an elongated paperstrip. It is desirable, in some machines, to observe the paper stripafter it has been written upon and for this reason it is of an advantageto be able to support the paper strip in position where it can beobserved and also to support the paper in such a position that it willnot get into the slit adjacent the platen or roller into which a newstrip of paper is to be inserted.

Furthermore, it is desirable to prevent the paper strip from adhering tothe roller or platen.

Paper holders or guides of this nature, as they are found in typewritersfor example, are often in the form of narrow strips of sheet metal orplastic which can be swung between operative and inoperative positions.Such guides or holders can also be telescopically mounted on the machineand provided with scales to indicate the position of the paper so thatthe end of the paper strip when it is relatively short can bedetermined.

Paper holders of the nature referred to are used to facilitate thehandling of the sheets, but they also make it difficult to makenotations on the sheets as they are fed from the machine.

The present invention proposes an improved novel paper support and guidehaving a support on which the guide can assume either an operative orinoperative position in which the guide is at least as wide as the paperto be fed through the machine and is firm enough to permit writing uponthe paper resting thereon. Furthermore, when the paper is written uponin this manner, the guide prevents hand written notations from beingtransferred to blank sheets therebeneath.

With the foregoing in mind, it will be evident that a primary object ofthe invention is the provision of an improved paper guide and supportfor paper sheets for use with writing and printing machines and inparticular, for calculating machines.

A further object of this invention is the provision of an arrangement ofthe nature referred to in which the support or guide is moveable betweeneffective and ineffective positions.

A still further object of this invention is the provision of a papersupport and guide which can readily be incorporated in a machine, suchas a calculating machine.

In general, the present invent-ion is practiced by providing a guide orsupport in the form of a plate which is tiltable about an axis parallelto the platen and which will rest against an abutment when in inclinedposition.

The plate referred to is preferably of such a size that when it is in aninoperative position it will shield or close the machine from above,thereby covering the tearoif rail and the typing mechanism of themachine to exclude dust and foreign matter therefrom. Also, the platecan be mounted in a frame insertable in the top opening of a calculatingmachine with the plate tiltable in the frame to open and close the topof the machine.

It is proposed in one form of the invention, to engage the lower portionof the plate referred to by lugs secured to an insert forming a part ofthe upper wall of the machine. Downwardly extending flanges can beprovided on the top wall of the machine, supporting lugs for pivotallyengaging the lower portion of the plate .when such flange is employed.The edge where the flange is connected to the top wall of the housingcan serve as an abutment for the plate when the plate is tilted to itsinclined operative position.

In other cases, the supporting lugs can be interconnected by atransverse bar which, in turn, is secured to a downwardly extendingflange of the top wall, in which case the upper edge of the transversebar may serve as an abutment for the plate.

It is further suggested for the supporting means for the pivoted plateto have a downwardly inclined resilient blade for directing the paperaway from the roll so that the paper will not adhere to the roll but,rather, will be guided directly to the support or guide plate accordingto the present invention. Such a blade is preferably provided with anupper spring edge for cooperation with the lower edge of the supportplate to keep the support plate pressed against the abutment referredto, preferably when the plate is in operative position. Such a deflectorblade can also be made integral with the support means for the guideplate.

It is advantageous for the free edge of the guide plate to be sloped tofit a similarly sloped portion of the upper wall of the housing to forma tight closure between the housing and the plate when the plate isclosed down on top of the machine. The said plate can be provided with ahandle for manipulation thereof, for example, at the free edge thereof.

The exact nature of the present invention will become more apparent uponreference to the following specification taken in connection with theaccompanying drawings, in which:

FIGURE 1 is a perspective view showing a support and guide plate,according to the present invention, mounted on a calculating machine;

FIGURE 2 is a fragmentary vertical sectional view through the machine ofFIGURE 1, showing a particular manner of mounting the paper guide andsupport plate of the present invention on the calculating machine; and

FIGURE 3 is a fragmentary perspective view showing at somewhat enlargedscale, details of the embodiment of FIGS. 1 and 2.

In the example shown on the drawing, the machine '10 is completelycontained in a protective machine housing 22 and carries on its rearportion a roll 6 of a band-shaped paper web 8 mounted for rotation onsupports 7. The upper or top housing wall comprises an insert 12 with anopening 11 in the middle thereof through which the independentlyrotatable ordinal series of printing rollers 9 and the tear-off bar 23are visible.

The paper holder of this invention is in the form of a plate 1 whosewidth is at least equal to the width of the paper web 8 and of the webportion 5 which forms a sheet supported on plate 1. In FIGURES 1 and 2the plate 1 is shown in an upright operative position. In FIGURE 2 theresting position 1 of the plate is also partly shown by a dot-dash linein which position where the plate is swung forward with its upperinclined face portion 1a resting upon a similarly inclined housing wallportion 12a. The free bent edge portion 1b of the plate forms a handle1b for bringing the plate from this resting position into its operativeposition and projects from the top surface of insert 12 in the restingposition in which plate 1 closes opening -11.

The axis about which this right operating position into its restingposition or vice versa is parallel to the axis of the platen 3. Plate 1in the inclined position forms a backing for the imprinted web portion 5which has passed the printing region formed by plate swings from its up-3 printing rollers 9 and platen 3, and may require Written notations. Inthe resting position, plate 1 serves as a closure for opening 11 ininsert 12, and forms a part of the top wall of the machine. The pivots 2of the plate 1 are at a higher level than the axis of the platen 3.

The lower portion 16 of plate 1 is pivotally mounted in bores 2a of apair of supporting lugs 14 and 15, connected by a yoke bar 19, which maybe carried by the insert 12, or by a flange 17 of housing 22, as shownin FIG. 3, secured by rivets 19'. These lugs can be attached directly toflanges of insert 12. A shaft 2 passes through bores 2a and through thelower portion 16 of the plate 1.

In these cases the abutment for the plate 1 in the upright position iseither formed by the edge 4 where the downwardly extending flange 17joins the rear portion of the top wall of the housing 22, or by theupper edge 18 of the yoke bar 19.

FIGURES 2 and 3 show that the members 14, 15, 19 which support the plate1 for pivoted movement can also carry a resilient downwardly inclinedpaper deflecting blade 20 with a spring edge 21 which cooperates withthe lower edge 16a of plate 1 to keep the plate in the operativeposition against abutment 18. The pressure of spring edge 21 will thenhave to be overcome when the plate 1 is to be swung forward into itsresting position.

When the shape of the machine housing permits it, the paper deflectingblade 20 and the supporting parts 14, 15 and 19 can all be formed of asingle piece of sheet metal whose transverse bar 19 can then be securedto the downwardly extending flange 17.

FIGURE 2 shows in cross-section the tear-E bar 23 and the path of theuntyped portion of the paper web 8 to the platen 3.

The paper take-oil of this invention can also be supported by thecarriage of a printing or typing machine without extensivereorganization.

It will be understood that this invention is susceptible to modificationin order to adapt it to difierent usages and conditions; andaccordingly, it is desired to comprehend such modifications within thisinvention as may fall within the scope of the appended claims.

What is claimed is:

1. In a machine such as a writing, printing, or calculating machinehaving a frame with a platen therein on which the paper being treatedrests and which frame has an opening in the top wall through which thepaper and at least the top of the platen is accessible; a support platecarried by the frame above said platen and in an inclined position toform a support and guide for paper leaving the platen and of a'firmnessto permit the paper on the plate to be written upon, said plate being atleast as wide as the paper being treated, said frame including meansnear the back edge of said opening pivotally engaging the lower edge ofthe plate for pivotally supporting the plate in the frame, and abutmentmeans on the frame to engage and halt said plate in its said inclinedposition, said means near the back edge of said opening including aresilient blade element inclined downwardly toward said roller andterminating near the point of separation of the paper from the roller todeflect the paper away from the roller and toward said plate, said bladeincluding resilient means yieldably engaging the lower edge of saidplate and biasing said plate toward said abutment means when said plateis in its said inclined position.

2. An arrangement according to claim 1 in which said blade and the saidmeans near the back edge of said opening are formed as a single integralpiece.

3. In a machine including printing means, a platen and a housingenveloping said printing means and platen and having a top wall formedwith an access opening located above said printing means and saidplaten, said opening having a width at least equal to the predeterminedwidth of a paper sheet to permit passage of a paper sheet from saidprinting means out of said housing, in combination, a paper supportplate having a width corresponding to said predetermined width and beingmounted on said top wall for movement between a position of rest closingsaid opening and an upright operative position projecting from said topwall and adapted to support the paper sheet after passage of the sheetbetween said printing means and said platen so that the sheet can bewritten upon after receiving an imprint; and means at the rear edge ofsaid opening for pivotally mounting said support plate and including aresilient blade element located below said top wall and said opening andinclined downwardly toward said platen, said blade element terminatingnear said platen to deflect the paper away from said platen and towardsaid support plate in said upright operative position, said bladeelement resiliently engaging the lower edge of said support plate andbiasing said plate toward the rear edge of said opening when saidsupport plate is in said upright operative position.

4. A machine according to claim 3 wherein said blade element includes anangular plate having a bent transverse edge cooperating with the loweredge of said support plate during movement of the same to and from 'saidupright operative position so that said angular plate resilientlyyields.

References Cited UNITED STATES PATENTS 447,859 3/1891 Yost 197-143776,017 11/1904 Felbel 197-181 X 953,571 3/1910 Zimdars 197-181 958,4975/1910 Hess 197-143 1,317,760 10/1919 Seib 197-143 1,888,052 11/1932Smith 197-181 1,958,645 5/1934 Smith 197-181 2,503,825 4/ 1950 Iambura197-143 2,574,575 11/1951 MacIntyre 197-180 2,633,968 4/1953 Lippert197-133 2,724,328 11/1955 Boyden et a1 197-133 X 2,807,348 9/1957 Challet al 197-143 3,050,171 8/ 1962 Baurngartner 197-133 ROBERT E. PULFREY,Primary Examiner.

E. T. WRIGHT, Assistant Examiner.

1. IN A MACHINE SUCH AS A WRITING, PRINTING, OR CALCULATING MACHINEHAVING A FRAME WITH A PLATEN THEREIN ON WHICH THE PAPER BEING TREATEDRESTS AND WHICH FRAME HAS AN OPENING IN THE TOP WALL THROUGH WHICH THEPAPER AND AT LEAST THE TOP OF THE PLATEN IS ACCESSIBLE; A SUPPORT PLATECARRIED BY THE FRAME ABOVE SAID PLATEN AND IN AN INCLINED POSITION TOFORM A SUPPORT AND GUIDE FOR PAPER LEAVING THE PLATEN AND OF A FIRMNESSTO PERMIT THE PAPER ON THE PLATE TO BE WRITTEN UPON, SAID PLATE BEING ATLEAST AS WIDE AS THE PAPER BEING TREATED, SAID FRAME INCLUDING MEANSNEAR THE BACK EDGE OF SAID OPENING PIVOTALLY ENGAGING THE LOWER EDGE OFTHE PLATE FOR PIVOTALLY SUPPORTING THE PLATE IN THE FRAME, AND ABUTMENTMEANS ON THE FRAME TO ENGAGE AND HALT SAID PLATE IN ITS SAID INCLINEDPOSITION, SAID MEANS NEAR THE BACK EDGE OF SAID OPENING INCLUDING ARESILIENT BLADE ELEMENT INCLINED DOWNWARDLY TOWARD SAID ROLLER ANDTERMINATING NEAR THE POINT OF SEPARATION OF THE PAPER FROM THE ROLLER TODEFLECT THE PAPER AWAY FROM THE ROLLER AND TOWARD SAID PLATE, SAID BLADEINCLUDING RESILIENT MEANS YIELDABLY ENGAGING THE LOWER EDGE OF SAIDPLATE AND BIASING SAID PLATE TOWARD SAID ABUTMENT MEANS WHEN SAID PLATEIS IN ITS SAID INCLINED POSITION.